Homestar Technical Clarification Rulings
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| Technical Question Title | Tool Version | Date Released | Credit Name | Tool Category | TC Link |
|---|---|---|---|---|---|
| TQ160 Door undercut exemption with commissioning | v4.1 | August 2022 | EHC | Link | |
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Approved Ruling: NZGBC accept the removal of undercuts/transfer grill provided commissioning is carried out per the TM 4 guidance (pg 52) and a report submitted to include at minimum; Description of the property, location/address of the building, name and address of the tester, time of adjustment, ventilation system manufacturer and type of device, adjusted volume flow rates for standard operation, mass flow/volumetric flow balance for outdoor air and exhaust air (maximum imbalance of 10 %), results of airflow in litres per second at each room terminal. A report should be provided regarding the adjustment of all supply air and extract air valves. |
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